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  • Title: Herniation of the temporomandibular joint into the external auditory meatus secondary to benign necrotising otitis externa.
    Author: Tan NC, Wilson A, Buckland J.
    Journal: Br J Oral Maxillofac Surg; 2009 Mar; 47(2):135-7. PubMed ID: 18848375.
    Abstract:
    The temporomandibular joint (TMJ) is intimately related to the external auditory meatus (EAM). Herniation of the joint into the EAM occurs secondary to neoplasia, trauma, inflammation and developmental problems [Conover GL, Crammond RJ. Tympanic plate fracture from mandibular trauma. J Oral Maxillofac Surg 1985;43:292-4; Ali TS, Rubinstein JT. Rheumatoid arthritis of the temporomandibular joint with herniation into the external auditory canal. Ann Otol Rhinol Laryngol 2000;109:177-9]. Benign necrotising otitis externa (BNOE) is an uncommon condition characterized by avascular necrosis of the tympanic plate that has been described as a sequela of simple otitis externa. [Wormald PJ. Surgical management of benign necrotizing otitis externa. J Laryngol Otol 1994;108:101-5.] We present a case of BNOE that resulted in a posterior herniation of the TMJ capsule into the EAM.
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